61351408605796 has 27 divisors (see below), whose sum is σ = 107585747710987. Its totient is φ = 30612752780480.

The previous prime is 61351408605779. The next prime is 61351408605827. The reversal of 61351408605796 is 69750680415316.

It is a happy number.

The square root of 61351408605796 is 7832714.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5733582360100 + 55617826245696 = 2394490^2 + 7457736^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8161684230 + ... + 8161691746.

Almost surely, 2^{61351408605796} is an apocalyptic number.

61351408605796 is the 7832714-th square number.

It is an amenable number.

61351408605796 is a deficient number, since it is larger than the sum of its proper divisors (46234339105191).

61351408605796 is an frugal number, since it uses more digits than its factorization.

61351408605796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16080 (or 8040 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 61351408605796 in words is "sixty-one trillion, three hundred fifty-one billion, four hundred eight million, six hundred five thousand, seven hundred ninety-six".